The Republican Party of Iowa and ABC News will co-sponsor a televised debate for GOP presidential candidates in December, Iowa GOP Chairman Matt Strawn said today.

The debate will be moderated by Diane Sawyer and George Stephanopoulos, and will be broadcast live on WOI-TV in Iowa, on ABC television nationally, and live-streamed on ABCNews.com. The event will be the weekend of Dec. 10-11, although the specific date and location won’t be released until later, officials said.

Strawn said this will be the third and final presidential debate co-sponsored by the Iowa GOP. He said the party has fulfilled its pledge to provide Iowa Republicans with both a cable and network broadcast debate partner during the run-up to the Feb. 6, 2012 Iowa Caucuses. The state party has also partnered with Fox News for debates in Ames and Sioux City.

“These three debates will serve to showcase our Republican candidates, and the Iowa Caucus process, to not just Iowa Republicans, but to a nationwide audience,” Strawn said in a statement.